Treating-tank for paper.



W Q 4f &3

A. 0. RICE.

' TREATING TANK FOR PAPER.

APPLIOATION PILEDIAB. 8. 190'].

4 SHEETS-SHEET 1.

No. 888,741. PATENTED MAY 26, 1908. A. 0. RICE.

TREATING TANK FOB PAPER. APPLIUATIOK FILED KAR- 8. 1907.

4 SHEETS-SHEET 3.

witness 2 0 PATENTED MAY26, 1908.

RICE." TREATING'TANK FOR PAPER. arrLi'oAtrlon FILED HAR.B.1907.

lb FIE??- z amz t 4 SHEETS-SHEET 4 1 ALVA-o.

UNITED s'rArEs I ATENT OFFICE.

RICE, or woRe sTE-R, MASSACHUSETTS; AssIeNpR T VELLUMOID PAPER COMPANY,

or WORCESTER, MASSACHUSETTS, A oonroRATIoN or WEST VIRGINIA.

TRE TING-TANK ronrArER.

To'al l whom may concern:-

Be it known that I, ALvA v 0. RICE, acitizen of-the United States of America, residin I at Worcester, in the county of Worcester an State of Massachusetts, have invented certain new and useful Treating-Tanks for Paper, of. which the following is aspecification. A

My invention relates to improvements in tanks andtheir appurtenances used in treating pa erand particularly in-the manufacture o what is knownas vellumoid paper, the same be'inglthat described and claimed in United States. Letters Patent numbered 1 804,808, and dated November 14th, 1905, and consists of a certain peculiar construction' and arrangement of tanks proper and of special means and mechanisms for actuating and handlin the paper while passing through the tanks, a as hereinafter set forth.

. The objects of my invention are, first, to

. produce mechanical means for expeditiously and economically treating paper of different grades and weights to toughen and strengthen the same and. to render it impervious to water, grease and acid; second, to afiord adjustable-means for properly guiding the paper in its assa e through the treating tanks; third, to 'urnish the press-rolls with an adjustable weight or pressure device; fourth, to provide adelicate adjustment for the actuating mechanism for thepaper whereby an even and uniform tension can be maintained, and, fifth to embody my 1m rovements in a practicable, efficient an comparatively compact form to the end that a etter and cheaper product is ro'duced than heretofore. I attain these 0 jects by the through the tanks and appurtenances, the

course of the paper being here indicated; Fig. 3 is an enlarged end view of one of the ad ustable guide rollers and of the mechanism therefor; Fig. 4, a sectional detail of said mechanism, taken on lines 4-4, looking in the direction of the arrow 3, in Fi 3, only the connected end portions of the ro ler and of the shaft and tube above being shown; Fig. 5,

Specification of LettersPatent. Application filed March 8,1907. Seria1 No. 361,226.

strain on the paper perforated pipe 15, throng Patented May 26, 1908.

an enlarged side elevation of the adjustable. I weight or pressure regulator used with each set of press-rolls; Fig. '6, a vertical section taken on lines 66, in Fig. 7, and,Fig. 7, an enlarged elevation of one ofthe belt shilpper-s or adjusters provided to equalize t e and insure a uniform pull thereon. Y

Similar fi ures refer to similar partsthroughoutt eseveral views. I

The'arrowsin the first four views indicate I the directions of moving members".

.In carrying my invention into effect I make use of two tanks placed one ahead of the other, for reasons which will be clearly apparent hereinafter, the first of these tanks being for a lutinous solution and thesecond for a forma dehyde solution, but it will be readily understood that the tanks and'their appurtenances might be employed separat 1y under some conditions.

he first 'orleft-hand tank, that for the glutinous solution or liquid "glue,- comprises in this instance a suitably supported wooden receptacle 10 and two metallic basins 11 and 12 each provided with a flange 13'arran'ged ,to support its basin from the. u per edge of said receptacle, the flange'of tli' resting directly on such edge and Zthe flange of the basin 12 resting directly on the other flange, as best shown in Fig.4. The upper basin 12 covers all of the basin 11 below ex cept for a short distance at the left-hand or front end. Extending across and above the basin 12 at the frontend is a perforated pipe 14 thro'u h which the liquid glue is admitted to sai basin, such pipe having connections which lead tothe source of supply of said glue. Behind the ipe 14 is a-second which steam or ot water may be injected into the glue basin. In the bottom of the basin 11 is a series of perforated steam pi es 16 connected; with a suitable source 0 supply. The glue in,the basin 12 is ke t at the desired temperature by means of lot water in the e basin 11 water basin 11 below, the water being mainture of my invention,.sinc'ein no other Way can so good results be produced, that isto say, an improved paper isthe outcome. of treatment under the conditions provided by tity through the pipe 14, in excess of the amount my tank. In practice, during the operation of the IILBQhiHllSIII, I prefer to um a quanof the solution into t e asin 12 in arms 18 and 19 notched at 20 for aper r0 1 spindles, onesuch s in'dle 21 being s own in position in the note es in the lower arms supporting a paper roll 22 between said arms. per 24 from the roll 22 first passes, is mounts ed above the front edge of the receptacle 10 in any suitable manner.

One or more rollers 25 and 26 are provided for this tank, the former being so arranged as to be adjusted longitudinally of the'tank and also to be adjusted vertically by being swung up and down on their supporting members as will presently be explained. The rollers- 26 are journaled in ordinary swivel hearings or su ports 27 located wherever desired at the sir es .of the receptacle 10. The object in havin swivel bearings for the rollers 26 is to enab e them to be easily adjusted from either end to suit the paper which passes over them so as to have no tendency to cause the aper to draw more on one side than on the ot er. At the back end of the tank on each side is a bifurcated standard 28 and squeeze-rolls or press-rolls 29 and 30 are mounted between these standards,

which rolls operate in the manner described in detail hereinafter.

The second or right-hand tank, that for the formaldehyde solution, is shorter than the other and consists of a wooden reee tacle 31, so ported in a similar manner to tlie receptac e l0, and a single metallic basin 32 supported by a flange 13 from the upperedge of said. receptacle 131. One or more rollers 25 are rovidcd for the formaldehyde tank, and it ias stamlards 28 and press-rolls 2!) and 31) at the rear end like the glue tank. The forinaldehyde is introduced into the l asin 32 in any suitable manner. An overllow tube 33 is provided at the hack eud ol' the formaldehyde tank to lake rareol' any excess of loi'riiahlnhyde that ma) iuaeiunulate in the basin 5'52. Ailjitfl'llh ends of the two tanks are connected by a frame 34 upon which Your guide rollers 35 are mounted, two on the side pieces at the top and two on the uprights.

Journaled in suitable hearings fastened on the framework which supports each tank are A guide roller 23, over which the pa shafts 36 and 37 upon which are mounted cone-pulleys 38 arranged in the usual manner with the large end of each adjacent the small end of the next. A belt 39 connects the cone-pulleys 38 on the first pair of shafts 36 and 37, and a similar belt connects the conepulleys on the next pair of shafts 36 and 37. lhe're is a pinion 40 on one 'end of each shaft 37 which meshes with a gear 41 on a shaft 42 suitably mounted beneath the tank with which it is associated. On the same shaft 42 with the gear 41 is a pinion 43 which meshes with a gear 44 on the shaft 45 of each press-roll 29. 1ournaled in bearings 46in the standards 28. Each of the shafts 47 of'the upper press-rolls 30 has each end journaled in a bearing 48 slidingly mounted in the vertical slot 49 in each standard 28 above the associated hearing 46. The upper and under ress-rolls are in contact with each other so t at the upper rolls are driven from the under ones. On adjacent ends of the shafts 36 are two pulleys 50 connected by a belt 51, and .on one of these shafts, the second in this case, is a pulley 52 which receives power from the main shaft.

It will now be seen that power is transmitted from the pulley 52 to the press-rolls, which actuate the paper and at the same time squeeze out or wring out the surplus glue and folmaldeh'y'de, through the medium of the The press-roll shafts 45 are i pulleys 50 and belt 51, shafts 36, cone-puleys 38 and belts 39, shafts 37, pinions 40, gears 41 and pinions 43 on the shafts 41, and gears 44 on the shafts 45.

I provide a pressure regulator to act upon each upper press-roll 30 and to bear the same down onto the associated lower press-roll 29 with a degree of pressure which may be varied, which I will next describe. On the top or cap plate 53 of each standard 28 is a vertical lug 54 slotted at the upper terminal to repeive a rack 55 which is plvoted at 56 to said u pa iallel with the sides of the tanks below and the two in each pair are parallel with each other. Pivoted at 57 to each rack 55 behind the pivot 56 is a slotted stirrup 58 having a spindle 59 extending downward through the cap plate 53 into engagement with the bearing 48 below. A slot 60 is provided in the rack for the pivot pin 57 so as to permit said rack to rock on its pivot 56 and actuate them out of the perpendicular. A weight r The four racks 55 thus mounted are heavy roller 61 having cogs'or teeth 62 1th.

each end to mesh with. the rack teeth is mounted on each pair of ranks At one end of earl]. roller is an angular extension 63 adapted to receive a key or crank to facilitate revolving said roller and thus rolling it along on the raeks.- The arrangement of these parts is such that, when either roller ()1 is moved forward on its racks 55 in front of their pivotal points 56, it acts to raise the associated press-roll from the ress-roll be low through the medium of sai racks, which are now tilted up behind, andthe connect- "ing stirrups 58, and when moved behind such points said roller'acts by forcing down the rear terminals of the racks and through the same medium to depress said;press-roll 3-0 and-to force it against the companion press-roll with a pressure that increases with the distance between the regulator roller and ;said pivotal points. By this means it is not only possible to open and close the press- .rolls with ease, but also to adjustor regulate quire ,1. rades and weights. I 3

"It is imperative in mechanism of this kind mhave a delicate adjustment for the paper' '20 I strain the paper, and for such urpose thep ress'ure on the pa er between such rolls with at nicety, sue regulation being re to. accommodate actuating mechanism in order not to tear or an a juster is rovided for each elt 39.

I -.-:Said adjuster, w 'ch '1 will now proceed to {dBSCI'ibQMOOIlSiSfiS essentially of two pairs of vertical idlers 64supported from a sleeve 65 The upper per pair of idlers and t e lower reach of suc belt passes between the lower pair of Jone endand is revoluble, but it is held in place against endwise movement by collars '69.69'and 70 and a nut 71 thereon, said collars 69 -being located a ainst the inside faces of the legs 67. The and-wheel 68 is outside-of one of the legs 67 and the collar 70 and nut 71 are outside of the opposite leg.- Extending above and below the sleeve 65 are four arms 72 having longitudinally screw-,

threaded passages 73 therein. A spindle 74 'isprovided for each of the lower arms 72 and a s indle '75 for each of the u per arms 72, spindles having screw-t readed inner terminals to enter'the passages 73. The

' idlers 64 "are open at the bottom and have interal hubs 76. Each spindle 74 is provided I with a' shoulder 77, which forms a bearinglfor' the associated idler,

V and with a screwthreaded .extension 78 at the base for a nut 79, Each lower hub 76-is received into a collar 80 which is slipped onto the s indle f extension 78 and held rigidly in place y the nut 79. A flange 81 in-this collar supports the parts above on cross-pieces or guides 82'82'extending between thelegs 67 and spaced apart to receive between them a projection 83 which is the part of the collar The idler is free to revolve on the shoulder 7 7 and in the collar 80. Each spindle is provided with a shoulder ,84 and a collar 85 for the mounting 'ofeach upper idler, said collar being held in place'between said shoulder and the to of the supporting arm 72. It is understoc of papers of different in on the screw 66.

.or slower.

receives a small flanged collar 87, w 'ch prevents the idler fromworking upward, and a nut 88, the latter securing said collar in pos'i" tion. The nut '88 is received between a pair of angle-irons or guides'89 fastened on the ceptacle 31, as the case may be',antl extend; 1

ing above andparallel with the guides 82. I

The two pairs of guides help -to sustain the members which serve as supportsdforthe idlers and prevent such membersfrom'turnrom the above it will readilysj'een that, by turning the hand-wheel the screw 66 causes the sleeve 65 to be actuatedin one'directerveningmechanism, and adjusting the belt 39 on the cone-pulleys 38 so as to drive the =85 tion or the other, according to the direction associated press-rolls 29 and 30 either faster By this means both sets of pressrolls can be easil and quickly brought into exact correspon ence and the. pull on the paper during its passage through the tanks made uniform. I I

Racks are provided onithe upper edges of'the rec-e tacles 1 0 and-31 upon which are mounted "or adjustment., longitu'dinally of the tanks the supports for the rollers 25.

These supports consist of'bearing boxes 91' and 92 on opposite sides of the tanks for shafts'93 having pinions 94tight thereon to mesh with the racks 90, the boxes 91 on the working side of the tanks differing from the others only'in that they are provided with upright flanges 95 having slots therein concentric with said shafts. One of the aforesaid slotsis' best shown as v 96 in Fig. 3. Loosely mounted on each shaft 93, inside of the boxes 91 and 92, are two hangers 97 and 98, and said hangers are connected by a tube 99 which incloses said shaft between the hanger hubs and'has its ends in threaded engagement with said hubs, as will beseen upon. referring to'Fig. 4. The tube 99 is threaded at the ends to receive lock-nuts 100 and to screw into the hubs of the hangers 97, said the hanger 98 connected therewith by the' tube 99 can be rotated on the shaft 93 upon -w,hich the parts are mounted, andin'threaded, I

engagement with which after passing throu'gh the slot 96in said flange is a hand-screw 1:02. The hand-screw 102 is adapted to lock and release the handle 101 to and from the con- 75 underside of the receptacle 10, or .of the retion of rotation given said crank.

tiguous flange95, and to be moved to an point within the slot 96 provided therefor. Now, therefore, since the trunnions 103 of each roller 25- are journaled in the bases of the supporting hangers 97 and 98 for such roller, as shown in Fig. 4:, it is apparent that, to adjust said roller at the proper height, it'is only necessary to'loosen the attendant hand-.

screw 102, move the handle 101 in whichever direction and to whatever extent maybe required to bring about the desired ad justment, and then tighten said hand -screw again. This can be accomplished without disturbing thesupporting shaft 93. On the end of each shaft 93 which is on the working side-of the tanks is a crank 104 by means of which said shaft is revolved to change the position of the associated roller 25 longitudinally relative to the tank inwhich it is located, the movement being efl'ected through the medium of the pinions 94 and the racks 90 and the direction depending upon the direc- 'lheadjustment longitudinally of-the roller25" does not affect its elevation or, in other words,

change the horizontal plane of its axis, be-

cause the construction and arrangement 18.

such that the reciprocating meclianism and the swinglng mechanism for said roller are operated entlrelyv independently of each other.

It is to be remembered th at'whatever twin parts are used with the tanks said parts are duplicates of each other in all essential artieulars both in construction and'operatlon.

Althou h the com lete operation of the tank mechanism will be pretty generally understood from the foregoing explanation, it

may be stated briefly to be as fol ows, assuming that the tanks have been properly charged, the pipes 16 heated, and all is in readiness: First the rollers 25 (and 26 when used) are adjusted in whatever manner and to whatever extent may be thought to. be necessary, and then the paper 24,- if a very heavy paper, is led from the supply-roll 22 and the roller 23 beneath the first roller 25 into floating contact with the liquid glue in the basin 1;, thence over the second roller 25 to the third roller 25, in floating contact with the glue all the time, and then below the surface of the solution "to the first ress-roll 29. The paper next passes upward, )etween and over the first set of ress-rolls, the roller 61 being so manipulater as to separate the two press-rolls by lifting the upper away from the lower for the passage of the paper and again manipulate to depress the upper press-roll andforce it against the paper on 25 in the formaldehyde basin 32 and from neatb. said rollers 25 and from the second of these rollers to the second press-roll 29.

-The paper passes through the second set of press-rolls 1n thesame way that it did throu h the first set, and is led from said second press-rolls to a drier (not shown). When firstintroducin thepa er into the mechanism both sets -o prss-rollsshould be left open until the paper has been correctly adjusted. The power is now turned on and the paper is drawn through the liquid glue and the formaldehyde solution in succession, the press-rolls removing the surplus of each as the pa er passes between them. Any reuired a ditional adjustment of any one of t e rollers 25 is effected by either turni the crank 104 or changing the position 3? the handle 101 or both, and any unevenessjn the pull on the paper is corrected by manipulating one or both of the hand-wheels 6.8.

A ighter paper calls for less exposure to the solution in the firsttank and generally for less exposure to the solution in the second tank also; the exposure to the solution in either tank can be shortened or lessened in various ways, such as, for example,- by.

decreasing the distances between the rollers last roller 25 in either tank and the adjacent press-roll, by decreasing the depth to which the paper is submerged, and by using fewer rollers 25any and all of these expedients may be resorted to in order to secure the desired results. From the above it is clear what method would be pursued in prep aringto treat heavy paper after treating a light or thin paper. Some of the lighter paper is led over one or both of the rollers 26 before being brought into contact with the glue and the first roller .25 is not used therefor, and such pa or does not usually pass over all of the use at any given time or what number is provided so long as there are enough to insure the pro or working of the tank mechanism.

It will while being treated passes into, througf and out of the two solutions in a continuously moving unbroken strip.

It is evident that many changes inthe construction and arrangement, particularly in the latter, of the different parts and mom b ers may be made without departing from the nature of my invention.

What I claim as my invention, and desire to secure by lictters Patent, is

1. The combination, in a treating tank for be clearly understood that the apcr paper, of a suitably supported basin for water,-1neans to heat the interior of said basin, a second basin suitably supported within the first and covering the same except at one end, and one or more (perforated pipes extending across said secon to the open end of said first basin.

2. The combination, in a treatin tank for paper, of a suitably sup orted asin for water, heating pipes in sail basin, a second basin suitably supported within the first and covering the same except at one end, and a supply pipe for said heating pipes entering bearm s the open end of said first basin.

3. The combination, in a treating tank for ed thereon, and revoluble means for adjusting said roller longitudinally of the tank.

4. The combination, in a treating tank for paper, with the tank, of a guide roller mounted thereon, revoluble means for adjusting said roller longitudinally of the tank, and oscillator means for adjusting the roller at different evels.

5. The combination, in a treating tank for paper, with a tank provided with racks on,v

its upper edg'es at the sides, of bearing-boxes mounted on such edges, a shaft journaled in such boxes and provided with pinions meshing with said racks, hangers carried by said shaft, a guide roller ers, and ,meansto revo ve the shaft.

6. The combination in a treating tank for paper, with the tank, of bearings. for a shaft sultably mounted onsaid tank, one of such having a flange, a shaft supported by sai bearings, connected hangers carried by said shaft and adapted to be oscillated thereon, a 'u ide roller supported by said hangers, and means for adjusting the hangers to locate said roller at diiferent levels,

such means com rising a hand-screwadapted to engage said flange and ,the adjacent hanger. I j

-7 The combination, in a treating tank for paper, with a tank provided withracks on its upper edges at the sides, of bearing-boxes mounted on such edges, a; shaft journaled in such boxes and provided with pinions meshing with. said racks, means to revolve said shaft, connected hangers loose on the shaft, a

guide roller supported by said hangers, and

means for adjusting the hangers to locate said roller at different levels.

8. The combination, in a treatin tank for paper, with the tank, and press-r01 s to actuate and squeeze the Ppaper being treated, of i sliding bearings for t e upper press-roll, iv-

otally mounted rocking suppo'rtmg me-m ers extending beyond their axes on both sides a basin adj acent' for su ported by said hang ing provided with su' rolling weight arranged to travel on said supporting members and capable of tilting-them at either end according to the position'of such weight thereon, and connections be-" tween said sliding bearings and such rocking supports.

9. The combination, in a treatin tank for paper, with the tank, and press-r01 s to actuate and squeeze the pa er being treated, of sliding bearings for t e upper press-roll,

standards for such bearings, racks pivotally v connected with such standards, connections between said racks and said sliding bearings, and a' rolling weight on the racks, such weight being serrated to engage the rack serrations.

10. The combination, with a treating tank, aper, the press-rolls associated with said tank and driving mechanism for such rolls, consisting in part of coneepulleys and a connecting belt, of a screw suitably mounted between said pulle s and between the reaches of said belt, a col ar mounted on and adapted to be actuated by said screw, mountmgs carriedby said collar, guides above and below,

said mountings arranged to receive the ends of the latter and to prevent the collar from rotating, without interfering with its longitudinal movement, and idlers .on the mountings both sides of the belt.

1 1. The combination, with a treating tank, for aper, the press-rolls associated with said tan and driving mechanism, for such rolls, consisting in part of cone-pulleys and a connecting belt, of a screw suitably mounted between said pulle s and between the reaches of said belt, a colliir mounted on and adapted to be actuated by said screw, mountings carried by said collar, the lower mountings beporting flanges, guides above and below sai mountings arranged to receive the ends of the latter and to prevent the collar from rotating, withoutinterfering i with its lon itudinalmovement, said flanges resting on t e lower guides, and idlers on the -mountings both sides of-the belt.

ALVA 0. RICE.

Witnesses:

E. A. DUNN, J. H. PEOKHAM 

